US1385690A - Stop mechanism for graphophones - Google Patents

Description

Patented Julyv 26, 1921.

bzmys E. 0. KLEMM. STOP MEcHANxsM FOR GRAPHQPHONES.

APPLICATION FILED JULY 15| 1919.

' E. O. KLEMM. STOP'MECHANISM FOR GHAPHOPHONES.

APPLICATION FILED JULY 15, 1919.vv

Patented July 26, 1921.

3 SHEETS-SHEET 3.

` E. o. KLEMM. STOP NIECHANISM FR GRAPHOPHONES.

APPLICATION FILED JULY 15, 1919. I 1,385,690. Patented July 26, 19.21.]

3 SHEETS-SHEET 2- UNITED s'rn'ras`v PATENT OFFICE. ,i

EDWIN O. iKLEMM, OF DAYTON, O,IIIO, ASSIGNOR TO KLEMM MANUFACTURING COM- PLNY, OF SAGINAW,` VMICIIIlSrAl.\T.

Ys'ror MECHANISM non GRAPHorHoNEs.

z Application led July 15,

To all w tom` t may concern.'

,Be it known thatv I, EDWIN O. KLnMM, a .citizen of the United States, residing at Dayton, inthe county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Stop Mecha-A nism for Graphophones, of which the following isa specification.

This invention appertains to the art of graphophones and involves particularly a certain novel controlling and stopping mechanism for such machines.

An important feature of the invention resides in the provision of stop mechanism susceptible of manual or automatic action at 'the' will of the operator of the sound producing machine.

Afsecond important 'feature of improvement devised by me resides in certain trip and detent devices employed in my mechanism whereby the time ofv operation of the machine may be varied to accommodate for the production of records of different sizes.-

Another highly essential object of my invention has been to devise provisions such that the controlling of the starting and stopping of the graphophone is made apart of the exclusive function of the tone or reproducer arm. In other words I have so designed'the stopping device, and parts intermediate the said devicefand the reproducer arm, that by proper manipulation of the latter the motor by which the record carrier orv table is actuated may be caused to startthe operation of the said carrier; other manipulation 0f said arm may be caused to predetermine the point on the record, whether at the end or any other part of the record,

where the stopping ofV reproduction will takoplace; and the customary movement onv manipulation of the tone arm may be employed to carry it to the proper point for deposit on the record to start the reproduction. Obviously the embodiment in the tone arm itself of the starting and stopping control functions,A respectingreproduction of records. of different. sizes by the graphophone, is a very practical desideratum in the art because runder such conditions the necessity of a separate manual or other device to control the starting, at least, is

avoided. I, therefore, deem this part of my.

invention broadly new and my claims therefore, are to be read not as coveringthe speciic instrumcntalities by which I accom.

Specification of Letters .Patent Patented uly 26", 192,1.

1919. serial No. 310,910. A

l sembled, land absolutely positive as `,regards adjustments and operation.

A complete understanding of the invention including the advantages for its use in practice, will be had on study of the following descriptionin conjunction with the annexed drawings, in which Figure l isa View in elevation, with the reproducer'arm and trip shown .partially in section, illustrating certain conventional graphophone devices withv the'improvements hereof applied thereto. v

VFig. 2 is a fragmentary top plan-view bringing out more clearly the arrangement of the shaft, brake and other controlling parts. j q

Fig. 3 is adetachedperspective-view showing particularly the trip, detent, and brake elements forming the, essential parts of .my invention, the brake arm and detent parts being 'shown in dotted lines as when the machine is in operation, in full'lines as Apositioned during the preliminaryadjustment of the trip. .f g

Fig. 4 is a fragmentary sectional view on the line P-4 of Fig. 1.

Fig. 5 is a corresponding' sectional view` the detent arm has been moved toa position for the starting of the graphophonei Fig. 7 is a perspective view of a modified adaptation of the invention.v

Fig. 8 is a sectional view, partly inele'va tion, of said modification. v Fig. 9is a sort of diagrammatic view" to show the eculiar movement of the reproducer arm 1n controlling stopping and starting of the motor.

In the drawings and the description forming the specification hereof, similar reference characters refer to similar parts throughout.

Taking up the general construction of the machine to which my invention is applied, it may be noted that said machine comprises a suitable base A which may be a portion of acabinet of one of many different types. To the under side of said base A is attached the customary motor frame, the motor of which is adapted to drive the spindle C which supports and turns the record table or platform D. The reproducerarm E withits reproducer F arelargely of the common type in use, the arm, being slightly modified as hereinafter set forth to provide a special mounting for the trip means of my invention.'A

The starting and stopping ofthe motor, not shown, is controlled in what is largely the known manner, by brake means arranged to coact with the disk 1 of the governor 2.

The foregoing sets forth those parts which are largely conventional, and the parts which comprisemy invention will now be described. j Y

.Attached to the lmotor frame B isa supporting plate seen best in Fig. 1,' the ends peculiar form being projected laterally as shown at 6*? and downwardly as shown in 6b, for a purpose tobe shortly disclosed. On the shaft 4 is secured, preferablydetachably, the brake arm 7 having the shoe 8 at its free end beneath and adapted to engage the n disk 1 of the governor 2.

"j plate 3 has a lateral projection u is connected' Ythe coiled spring 10.

@ne of the extensions, at the end of the 9 with which The spring -10 is -likewise-4 connected with the upper portion of thearm .6 as shownat 10', and the normal actionof the spring 1() isl to lrock the shaft 4 .so-as to causeA engagement of the shoe 8 with the governor disk 1.' I utilize two means for maintaining the.

brake device inactive in relation to the governor 2, one means formmgva part-.of the automatic controlling devices for the stop orgbrake mechanism, and the other fmeans adapted yto render the means just above referred to inoperativeV to perform its function, and to holdthe brake vdevice inactive until 'restoredv to activity by manipulation of certain parts by the operator. Y l

iTaking uptheautomatic means first it is notable that the reproducer f arm E is threaded nearV its point of support as shown at 11 and the socket member 12 of la trip of said plate being out turned and having 13 is likewise threaded to screw upon said threaded portion 11 of thereproducer arm. The trip 131thus has a friction connection Awith the arm E and the ,trip 13 is bent downwardly and laterally to form the arm 14 arranged to coact with the detent arm 6. The. mode of operation yof the parts just set forth is as follows:

It should be borne in mind that the lever or arm 5 of the shaft 4 extends upwardly` through a slot' 15 in the'base A and said lever 5 is movable by the hand and adapted to occupy 8 positions shown in full and dotted lines in F ig, 4. Assuming that a' record has been placed upon the table D, to adjust the mechanism forthe playing of said record and the stopping .of the machine at the end of the record, the operator grasps the reproducer arm E and shifts the .saine with a motion of the reproducer from the center of the table D outward. The reproducing needle or stylus is then deposited on the last sound `groove of the record. The

motor being maintained out of action by theV engagement ofshoe 8 with governor disk 1, the parts are now in substantially the positions shown in Figs. 1 andl 3. That is to say, Vthe described movement of the reproducer arm has brought the trip arm '14 against the portion 6b of the detentarm 6,1

and ysaid arm 14 by slight turning'ou the producer arm E is therefore located in the.

position itA will occupy when the repro'-VV ducer reachesthexend of the record.l To start the machine, the operatorV pulls, the lever 5 from the stopping position occupied by it, as shown in Fig. 3, and designated e in Fig. 4, to its starting position designated j .ein Fig.' 4. The movement of the leverf5 in this manner disengages the brake means from the governor disk 1, as shown by dotted les' l-ines in Fig; 3, and lowers the portions 6b ,Y

and (Stof the detent arm 6, also as shown in Fig'.' The operator holds the lever 5v in the starting position m aforesaid, momentarily, and then shifts the reproducer arm .Tl toV carrythe reproducing needle to the first or outer groove and deposits the needle there.

Thelever 5, may now bereleased andthef spring 10 will act to lift the horizontal portionGa. off the. arrn` 6 up against the under side of the trip arm 14. In this way the' detent arm 6 is prevented from tilting toits normalstopping position, the. brakesboe S- being thus detained or preventedV from en#V gagementwith the disk 1, so long as the arm 14engages the portion' G of the'arin- 6. ObviOusly, however, .after the ,reproducer has traversed therecord, on coming. to theien'd of the record, the trip 14 which moves with the reproducer, on account of its frictional con nection, passesoif of the portion 6, so that the spring 10 acts on the.` arm (i to rock said arm tothe shaft 4, to raise the shoe 8 into stopping engagement, with Vthe governor During the time when the soundrecordis` being played, the lever occupies the position shown at y in dotted lines, in Fig. 4, the shaft 4 being partially tilted its stopping position.

In Fig. 6, the full and dotted line posi.v tions of the arm 6 and its portion 6a and 6b,

correspond with the positionsof Athelever,

- as shown in Fig. 5, and the several positions of the arm 6 are, therefore, designated ae', y and e.

Should it be desired to maintain the automatic stopping devices out of action, I resort to the simple expedient of-moving the lever 5 to the position w, of Fig. 5 and temporarily locking said lever in such position by a. hook 16. f

If the operator should desire to employ the stop mechanism after the manner of the usual hand controlled stop mechanisms of graphophones, the hook 16'is used to maintain the lever 5 at its starting position, or with the brake released until stopping of the record is necessary, whereupon the lever 5 isl unhooked. If ont unhooking the lever 5 the reproducer F has traveled sulliciently far vto carry the arm 14 off of the portion 6 of the detent arm 6, obviously the spring 10'will cause the application of the brake 8 and stopping of the motor. It maybe, however, that when the operator wants to stop the machine, and release the lever 5, .the trip arm 14 may still engage the portion Ga of the arm 6. Under f these conditions, the operator simply carries the reproducer arm E to about the center of the record to'makesure that the trip 13- does' noti coact with the part 6EL to' prevent the application of the brake.

The advantages ofmy mechanism will be apparentwhen it is recognized that I util! izeabout six parts only in the construction yof my devices and all these parts are simply formed, adapted tobe cheaply made, and

maybe very easily put together and applied to popular types of machines. vInstead of the screw thread connection of the trip collar 12 with the reproducervarm E any suitable frictional connection may be employed.

F igs.'7 to 9 inclusiveshow'the modified adaptation of the invention/wherein'I -utilize the tone-arm E in peculiar cooperation with the detent arm 6 for causing the starting of the movement of the 'carrier on table D. It willr be remembered that according` to the construction before described` herein, the starting of themotoris accomplished through the manipulation of the lever. By my lmodified. construction Iam enabled 'to back from' dispense with the lever 5 entirely. In fact, y

`the first form ofmy invention set forth herein, have like .reference characters. -I might note, however, that the reproducer arm E according tomy modified construction should preferably be one of thev type having the usual universal joint connection E with the base A, shown in Fig. 3. I have.

illustrated the trip 13 with its lateral portion 14 in a form which frietionally engages the tone arm near the universal joint E. This trip forms an invention separate entirely from this application. The ti-ip 13 works practically the same as' the trip 13 pie viously described. Y p

Understanding the construction of the parts in a modified form as per the slight d ifferences just set forth,-it is notable that the following peculiar operation of the parts for controlling the stopping point and starting of the carrier D and the record thereon may be obtained. Assuming that the reproducer needle occupies a position at rest about at the center of the record, and referring to Fig. 9, to adjust the reproducer for stopping of the record at the end of the record brake, the operator will grasp the reproducer arm E, elevate the same slightly and shift the arm outwardly, say from A toB according to the diagrammatic illustration of Fig.

9. `In this way the member 14'of the trip. 13 is caused to engage the part '6b of the den j Thereafter the Varm E raised and caused to traverse a vpath sonie- Y thing like that shown from B to C in Fig. 9,.the member 14in this way being caused to depress the portion 6a of the arm G,y in such a manner as to disengage the brake-slice 8 from the governor disk 1.` The operation of the carrier D is thus started by lthe motor when released in this manner. the operator merely shifts the reproducer say from the point C to the point D as (lesig'-,

nated in F ig. 9, assuming-the point IY to be;

the position at which the arm E should be deposited for commencement of reproduction of the record. v i' I contemplate that there may be two variations of the mode of operation just described. In the iirst'place the adjustment of the reproducer arm E preliminarily to control the stopping point may be yat any point to bring the needle to any point in the length ofthe record during the preliminary outward adjustment 'and before the raising movement characterized as B tojC` Lin-Fig. 9 commences. yAgaiiutheop- Thereafter i erator may of course, deposit the needle at anypoint in the length of the record foi starting; he does not have to deposit it at the outer end of the track of the record.

lObviously Where the tone arm E has a universal joint connection With the base A, the mode of operation just set forth may be used with the construction of detent arm 6, brake parts, and lever 5, shown clearly in Fig. 3 under which conditions moreover the arm Exor the member 5 may be employed to controlv starting, at the option of the user of the machine. However, the evident simplicity of control obtained by me aecording to my construction in Figs. 7 to 9, is a great advantage from practical and commereialvievv points owing to both simplic- Y ity of structure and operation.

Having thus described my invention'what I claim as new is 1. Graphophone mechanism comprising in combinatiom'a record carrier and a reproducer to traverse a record on said carrier, drivingV mechanism for the carrier, stop means for the driving mechanism, including a brake member anda spring to render lsaid member effective., amember to manually operate the brake, and means to lock said member in a predetermined position.

2. Graphophone mechanism comprising in combination,- a record carrier and a reproducer to traverse a record on said carrier, driving mechanism for the carrier, stop means for the driving mechanism', including a 'brake member and a spring to render said member effective, a lever to Vmanually operate the brake, and means to lock vthe lever in a vposition holding the brake member inactive. v 4 3. Graphophone mechanism comprising in combination, a record carrier and a reproducer to traverse Va-record on said carrier, driving mechanismy for the carrier, stop means for the driving mechanism, includingvv a brake member, anarm' ycarrying the reproducer, a trip on the reproducer arm movable with and independently thereof,. and a detent connected with the brake member to control the operativeness thereof, said detent embodying an arm having a portion to engage and cause movement of the trip relativelyto the arm, and a second portion,

to engage the tripV and to be restrained from vmovement by the trip, and spring means to move the detent arm when the restraining infiuence of the trip is removed therefrom. i' l 4. Graphophone mechanism comprising in combination, a record carrier anda reproducer to traverse a record on said carrier,

driving mechanism for the carrier, stop.

means lfor the driving mechanism, comprising a.V rock shaft, a lever arm on said shaft to manipulate it, a brakememb'er lcarried by theishaft, a detent arm on said shaft to" control the'action-of-thevbrake member, and

a trip operable `by the reproducer and adapt--` ed to coaet with the detent arm.

5. Graphophone mechanism comprising in ing a rock shaft, a lever arm on said shaft. to manipulate it, a brake member carried by the shaft, a detent arm on said shaft to control the action of the brake member, av

trip movable by the reproducer, and; adapted to Vengage the vdetent arm, and spring means to maintain eoaction of the tripand detent arm.

maintain eoaction of the trip Vand detent and to shift the shaft to applyA the brake member for stopping when the trip is disengaged from the detent arm.

7. Graphophone mechanism comprising'in combination, a record carrier and a reproducer toy traversea record on said carrier,

driving mechanism for the carrier, stop` means for the d-riving mechanism,'compris ing a rock shaft, a lever armen said shaft to manipulate-it, Va brake member `carried by the shaft, a detent arm on-said shaft':to control the action of the brake member, a

trip operable by the reproducer andadapted to coaet With the detent arm, and a lockfor 'holding' the shaft in a position preventing cooperation of thedetent arm and trip.

8. Graphophone mechanism comprising in combination, a record carrier and a reproducer to traverse a record on said carrier, driving mechanism for the carrier, vstop means for the driving mechanism, comprising a rock shaft, a lever arm on said shaft to manipulate it, Va brake member carried` by the shaft, a detent arm-on said shaft to control the action of the brake member, Y, a trip operable bythe reproducer and adapted to coaet with Vthe detent arm, and a lock-to hold the lever arm inaposition preventing cooperation of the trip and detent arm.

9. Graphophone mechanism comprising in' combination, a vrecord carriergand a reproducer to traverse a record on: said carrier, driving `mechanism for lthe carrier, stop means forthe driving mechanism, comprising a rock shaft, a brake member on said shaft,

a detent armen saidv shaft, a reproducer arm, Ia trip movable with and independently 6. Graphophone mechanism comprising in combination, a record carrier and arepr'o-` izo of the reproducer arm, andy manual means to hold said shaft in a position maintaining the brake member ineffective.

yl0. Graphophone mechanism comprising in combination, a record carrier and a reproducer to traverse a record on said carrier, driving. mechanism for the carrier, stop means for the driving mechanism, comprising a rock shaft, a brake member'on said shaft, Vadetent arm on said shaft, a reproducer arm, a trip movable With and independently ofthe reproducer arm, manual means to hold said shaft in a position maintaining the brake member ineffective and a locking device to hold the shaft in said position maintaining the brake means ineffective.

1l. Graphophone mechanism comprising in combination, a record carrier and a reproducer to traverse a record on said carrier, driving mechanism for the carrier, stop means for thevdriving mechanism7 comprising a rock shaft, a brake member on said shaft. a detent arm on said shaft, a reprodncer arm, a trip movable With and independently of the reproducer arm, manual means to hold said shaft in a position maintaining the brake member ineffective and a locking device to engage said manual means to hold the same in a predetermined position.

l2. Graphophone mechanism comprising coact yWith the detent arm, a spring for con-Y.

trolling cooperation of the detent arm and trip, and manual means to interfere With the action of the spring.

13. Graphophone mechanism comprisingl in combination, a record carrier and' a reproducer to traverse arecord on said cai'- rier, driving mechanism for the carrier, stop i means for the driving mechanism, comprising a rock shaft, a lever arm on said shaft to manipulate it, a brake member carried by the shaft, a detent arm on said shaft to control the action of the brake member,- a

`trip operable by the reproducer and adapted to coact with the detent arm,said detent arm having a bent end portion to abut and move the trip relatively to the reproducer, and

having another bent portion to hold the shaft in a certain position during movement of the reproducer While traversing the record.

In testimony whereof I affix my si nature.

EDWIN O. KL 4M`M.

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